HHR for sale

There is an HHR 2LT for sale locally here for $800. It looks good cosmetically but the ad states that 1st and 2nd gear on the automatic arent working. It starts out in 3rd gear. Ad further states that its either transmission solenoids or the computer. Said car has 200k miles and has been used as a medical courier. What do the knowledgeable people here think it is?
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